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Interaction between viral RNA silencing suppressors and host factors in plant immunity

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Title: Interaction between viral RNA silencing suppressors and host factors in plant immunity
Authors: Nakahara, Kenji S Browse this author →KAKEN DB
Masuta, Chikara Browse this author →KAKEN DB
Keywords: Plant innate immunity against viruses
RNA silencing suppressor
zigzag model
arms race between plants and viruses R-gene-mediated hypersensitive response
Issue Date: Apr-2014
Publisher: ELSEVIER
Journal Title: Current Opinion in Plant Biology
Volume: 20
Start Page: 88
End Page: 95
Publisher DOI: 10.1016/j.pbi.2014.05.004
PMID: 24875766
Abstract: To elucidate events in the molecular arms race between the host and pathogen in evaluating plant immunity, a zigzag model is useful for uncovering aspects common to different host-pathogen interactions. By analogy of the steps in virus-host interactions with the steps in the standard zigzag model outlined in recent papers, we may regard RNA silencing as pattern-triggered immunity (PTI) against viruses, RNA silencing suppressors (RSSs) as effectors to overcome host RNA silencing and resistance gene (R-gene)-mediated defense as effector-triggered immunity (ETI) recognizing RSSs as avirulence proteins. However, because the standard zigzag model does not fully apply to some unique aspects in the interactions between a plant host and virus, we here defined a model especially designed for viruses. Although we simplified the phenomena involved in the virus-host interactions in the model, certain specific interactive steps can be explained by integrating additional host factors into the model. These host factors are thought to play an important role in maintaining the efficacy of the various steps in the main pathway of defense against viruses in this model for virus-plant interactions. For example, we propose candidates that may interact with viral RSSs to induce the resistance response.
Type: article (author version)
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 中原 健二

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